D-Link DES-1252 User Manual page 22

Link/Act for UTP ports
On When the Link/Act LED light is on, the respective port is
connected to a 10/100 or 1000MBps Ethernet network.
When the port speed is 1000Mbps, this LED will be
shown in Green light. Otherwise, it will be shown in
Amber light.
Blinking When the LED is blinking, the respective port is
transmitting or receiving data on a network.
Off No link.
Ports 51~52 10/100/1000 Base-T LEDs
Link/Act
On When the Link/Act LED light is on, the respective port is
successfully connected to a 1000Mbps Gigabit Ethernet
network.
Blinking When the Link/Act LED is blinking, the port is
transmitting or receiving data on the Ethernet network.
Off No link.
10/100Mbps (shown in Amber Light)
On When the Link/Act LED light is on, the respective port is
successfully connected to an Ethernet network.
1 7
1 7